PRODUCTION METHOD FOR PURIFIED MATERIAL CONTAINING CRYSTALLINE L-CARNOSINE ZINC COMPLEX

摘要

A production method for a purified material that contains a crystalline L-carnosine zinc complex and a reduced amount of an alkali metal salt, the production method including a step (A) wherein a crude material that contains the crystalline L-carnosine zinc complex and the alkali metal salt is brought into contact with a liquid that includes an alcohol that has 1-3 carbons.